%%

"+" { printf("plus\n"); }
"-" { printf("minus\n"); }
"*" { printf("times\n"); }
"/" { printf("divide\n"); }
[0-9]+ { printf("number %s\n", yytext); }
\n { printf("newline\n"); }
[ \t] {}
. { printf("mastery character %s\n", yytext); }
%%
